Decomposition of high-frequency electrical conductivity into extracellular and intracellular compartments based on two-compartment model using low-to-high multi- b diffusion MRI

Table 2 Mean and standard deviation values of the high frequency conductivity, \(\sigma _H\), extracellular volume fraction, \(f_{ec}\), extracellular diffusivity, \(D_{ec}\), extracellular ion concentration, \({\bar{c}}_{ec}\), and extracellular conductivity, \(\sigma _{ec}\) within ROI for different noise levels of (\(\hbox {SNR}_P\), \(\hbox {SNR}_D\))

	(200,100)	(200,50)	(200,10)	(100,100)	(100,50)	(100,10)	(50,100)	(50,50)	(50,10)
\(\sigma _H\)	1.00 ± 0.06	1.00 ± 0.06	1.00 ± 0.06	1.02 ± 0.12	1.02 ± 0.12	1.02 ± 0.12	1.09 ± 0.29	1.09 ± 0.29	1.09 ± 0.29
\(f_{ec}\)	0.61 ± 0.15	0.60 ± 0.16	0.70 ± 0.16	0.61 ± 0.15	0.60 ± 0.16	0.70 ± 0.16	0.61 ± 0.15	0.60 ± 0.16	0.70 ± 0.16
\(D_{ec}\)	1.42 ± 0.51	1.50 ± 0.55	1.68 ± 0.83	1.42 ± 0.51	1.50 ± 0.55	1.68 ± 0.83	1.42 ± 0.51	1.50 ± 0.55	1.68 ± 0.83
\({\bar{c}}_{ec}\)	0.70 ± 0.17	0.68 ± 0.18	0.72 ± 0.34	0.71 ± 0.19	0.69 ± 0.20	0.73 ± 0.34	0.76 ± 0.29	0.74 ± 0.28	0.78 ± 0.38
\(\sigma _{ec}\)	0.56 ± 0.16	0.55 ± 0.16	0.67 ± 0.16	0.57 ± 0.17	0.56 ± 0.17	0.68 ± 0.17	0.61 ± 0.23	0.60 ± 0.24	0.72 ± 0.23

ISSN: 1475-925X